#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
void sub(int x,int y, int * z) 
{
	*z = y - x;
}
int main() {
	int a, b, c;
	sub(10, 5, &a);
	sub(7, a, &b);
	sub(a, b, &c);
	printf("%d,%d,%d\n", a, b, c);
	int j, k, l, m;
	int i = (j = 4, k = 8, l = 16, m = 32);
	printf("%d", i);
}